Simulation and Analysis on Multiple Steady States of an Industrial Acetic Acid Dehydration System

In this work, an industrial acetic acid dehydration system via heterogeneous azeotropic distillation is simulated by Aspen Plus software. Residue curves are used to analyze the distillating behavior, and appropriate operating region of the system is determined. Based on steady states simulation, a s...

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Bibliographic Details
Published in:Chinese journal of chemical engineering 2011-12, Vol.19 (6), p.983-989
Main Author: 李绍军 黄定伟
Format: Article
Language:English
Subjects:
Acetic acid
acetic acid dehydration
Aspen
Chemical engineering
Dehydration
Distillation
heterogeneous azeotropic distillation
multiple steady states
residue curve
Sensitivity analysis
Simulation
Steady state
Streams
共沸蒸馏
冰醋酸
工业
敏感性分析
稳定状态
稳态模拟
脱水系统
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Summary:In this work, an industrial acetic acid dehydration system via heterogeneous azeotropic distillation is simulated by Aspen Plus software. Residue curves are used to analyze the distillating behavior, and appropriate operating region of the system is determined. Based on steady states simulation, a sensitivity analysis is carried out to detect the output multiple steady states in the system. Different solution branches are observered when the flow rates of the feed stream and the organic reflux stream are selected as manipulated variables. The performance of the column under different steady states is different. A method is oroposed to achieve the desired steady state.
ISSN:1004-9541
2210-321X
DOI:10.1016/S1004-9541(11)60081-5